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Journal Article

Dynamics of Srf, p300 and histone modifications during cardiac maturation in mouse

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons50535

Schueler,  Markus
Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons50521

Schlesinger,  Jenny
Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons50602

Tönjes,  Martje
Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons50492

Sperling,  Silke
Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

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Schueler.pdf
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Citation

Schueler, M., Zhang, Q., Schlesinger, J., Tönjes, M., & Sperling, S. (2012). Dynamics of Srf, p300 and histone modifications during cardiac maturation in mouse. Molecular BioSystems, 8(2), 495-503. doi:10.1039/c1mb05363a.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-F099-4
Abstract
The adaptation of the cellular network to functional changes, timing and patterning of gene expression is regulated by binding of transcription factors to gene regulatory elements, which in turn depends on co-occurring histone modifications. These two layers influence each other, enabling a further level of regulatory fine-tuning. We analyzed the interdependencies between histone 3 acetylation, histone 3 lysine 4 dimethylation, the transcription factor Srf and the histone acetyltransferase p300 in an in vivo model using chromatin immunoprecipitation in a time-series during cardiac maturation in mouse. We found a strong correlation between the presence of the two histone modifications and binding of Srf and p300. Using linear modeling techniques we could show that each factor contributes individually as well as conjointly to histone 3 acetylation and gene expression, probably aided by accompanying histone 3 lysine 4 dimethylation. We further demonstrate that changes in gene expression during cardiac maturation are attended by changes of the analyzed regulators while revealing a high variability of combinatorial regulation. Finally, we propose a model of Srf-driven gene expression in cardiomyocytes.